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首页> 外文期刊>Journal of Environmental Management >The assessment of forest ecological security and its determining indicators: A case study of the Yangtze River Economic Belt in China
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The assessment of forest ecological security and its determining indicators: A case study of the Yangtze River Economic Belt in China

机译：森林生态安全评价及其确定指标-以中国长江经济带为例

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摘要

This study put forward an evaluation index system for measuring forest ecological security index (FESI). Taking the 1086 counties located in the Yangtze River Economic Belt as a case study, we investigated the change and its spatial pattern of FESI, as well as the determining indicators (both natural and socio-economic), with the support of Arcmap and GeoDA software. The average FESI value of the study counties in 2010 and 2015 was found to be 0.4226 and 0.4990, increased by 18.08%. Spatially, an evident spatial gradient change was identified, with FESI values in the upstream areas of the Yangtze River being higher than those in midstream areas, and the values of midstream areas in turn being higher than those in downstream areas. The eight tributary basins within the economic belt witnessed significantly different FESI values. Based on the results of this evaluation of FESI and its sub-evaluation indexes, we identified 46.04% of the total counties as constituting "problem areas". These problem areas were mainly concentrated in Shanghai, Jiangsu and Anhui provinces, followed by counties around Dongting Lake, Poyang Lake and in Sichuan province. A regression analysis was conducted in order to identify the determining indicators behind forest ecological security, with results indicating that the ratio of secondary industry, the urbanization rate, the per capita financial institution loan balance, accumulated temperature and wind speed all negatively impacted on FESI values, while population structure, soil organic matter and rainfall were revealed to play a positive role; all of these indicators were highly significant. Given these findings, we also set out a series of policy measures intended to promote the sustainable forest development of the study region. These include the vigorous development of tertiary industry and moves to reduce the proportion of the secondary industry in the national economy, the development of a circular economy, slowing the pace of urbanization, and continued increases in forestry investment in central cities - particularly in problem areas.
机译：提出了森林生态安全指数评价指标体系。以长江经济带的1086个县为例，在Arcmap和GeoDA软件的支持下，我们调查了FESI的变化及其空间格局，以及确定指标（自然和社会经济方面） 。 2010年和2015年研究县的平均FESI值分别为0.4226和0.4990，增长了18.08％。在空间上，确定了明显的空间梯度变化，长江上游地区的FESI值高于中游地区，而中游地区的FESI值又高于下游地区。经济带内的八个支流盆地的FESI值差异很大。根据FESI的评估结果及其子评估指标，我们确定了46.04％的县为“问题区”。这些问题地区主要集中在上海，江苏和安徽省，其次是洞庭湖，Po阳湖和四川省附近的县。为了确定森林生态安全背后的决定性指标，进行了回归分析，结果表明第二产业的比例，城市化率，人均金融机构贷款余额，累积温度和风速都对FESI值产生了负面影响。 ，尽管揭示了人口结构，土壤有机质和降雨起着积极作用;所有这些指标都非常重要。鉴于这些发现，我们还制定了一系列旨在促进研究区域森林可持续发展的政策措施。其中包括第三产业的蓬勃发展和降低第二产业在国民经济中的比重的举措，循环经济的发展，城市化进程的放慢以及中心城市-尤其是在问题地区的林业投资的持续增加。

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